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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/cocoa/mdi.mm
3 // Purpose: wxMDIParentFrame, wxMDIChildFrame, wxMDIClientWindow
4 // Author: David Elliott
5 // Modified by:
6 // Created: 2003/09/08
7 // RCS-ID: $Id$
8 // Copyright: (c) 2003 David Elliott
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #include "wx/wxprec.h"
13
14 #if wxUSE_MDI
15
16 #include "wx/mdi.h"
17
18 #include "wx/cocoa/objc/objc_uniquifying.h"
19
20 #ifndef WX_PRECOMP
21 #include "wx/log.h"
22 #endif // WX_PRECOMP
23
24 // #include "wx/cocoa/autorelease.h"
25 #include "wx/cocoa/mbarman.h"
26
27 #import <AppKit/NSWindow.h>
28 #import <Foundation/NSNotification.h>
29 // #import <AppKit/NSApplication.h>
30 // #import <AppKit/NSView.h>
31
32 #include "wx/listimpl.cpp"
33 WX_DEFINE_LIST(wxCocoaMDIChildFrameList);
34
35 WX_DECLARE_HASH_MAP(int, wxMDIChildFrame*, wxIntegerHash, wxIntegerEqual, wxIntMDIChildFrameHashMap);
36
37 // ============================================================================
38 // wxMDIParentFrameObserver
39 // ============================================================================
40 @interface wxMDIParentFrameObserver : NSObject
41 {
42 wxMDIParentFrame *m_mdiParent;
43 }
44
45 - (id)init;
46 - (id)initWithWxMDIParentFrame: (wxMDIParentFrame *)mdiParent;
47 - (void)windowDidBecomeMain: (NSNotification *)notification;
48 @end // interface wxMDIParentFrameObserver : NSObject
49 WX_DECLARE_GET_OBJC_CLASS(wxMDIParentFrameObserver,NSObject)
50
51 @implementation wxMDIParentFrameObserver : NSObject
52 - (id)init
53 {
54 wxFAIL_MSG(wxT("[wxMDIParentFrameObserver -init] should never be called!"));
55 m_mdiParent = NULL;
56 return self;
57 }
58
59 - (id)initWithWxMDIParentFrame: (wxMDIParentFrame *)mdiParent
60 {
61 wxASSERT(mdiParent);
62 m_mdiParent = mdiParent;
63 return [super init];
64 }
65
66 - (void)windowDidBecomeMain: (NSNotification *)notification
67 {
68 wxASSERT(m_mdiParent);
69 m_mdiParent->WindowDidBecomeMain(notification);
70 }
71
72 @end // implementation wxMDIParentFrameObserver : NSObject
73 WX_IMPLEMENT_GET_OBJC_CLASS(wxMDIParentFrameObserver,NSObject)
74
75 // ========================================================================
76 // wxMDIParentFrame
77 // ========================================================================
78 IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame,wxFrame)
79 BEGIN_EVENT_TABLE(wxMDIParentFrame,wxFrame)
80 END_EVENT_TABLE()
81
82 void wxMDIParentFrame::Init()
83 {
84 m_clientWindow = NULL;
85 m_currentChild = NULL;
86 m_observer = [[WX_GET_OBJC_CLASS(wxMDIParentFrameObserver) alloc]
87 initWithWxMDIParentFrame:this];
88 [[NSNotificationCenter defaultCenter] addObserver:m_observer
89 selector:@selector(windowDidBecomeMain:)
90 name:NSWindowDidBecomeMainNotification object:nil];
91 }
92
93 bool wxMDIParentFrame::Create(wxWindow *parent,
94 wxWindowID winid, const wxString& title,
95 const wxPoint& pos, const wxSize& size,
96 long style, const wxString& name)
97 {
98 if ( !wxFrame::Create(parent,winid,title,pos,size,style,name) )
99 return false;
100
101 m_clientWindow = OnCreateClient();
102
103 return m_clientWindow != NULL;
104 }
105
106 wxMDIParentFrame::~wxMDIParentFrame()
107 {
108 for(wxCocoaMDIChildFrameList::compatibility_iterator node =
109 m_mdiChildren.GetFirst(); node; node = m_mdiChildren.GetFirst())
110 {
111 wxMDIChildFrame *child = node->GetData();
112 // Delete it NOW
113 delete child;
114 wxASSERT_MSG(!m_mdiChildren.Find(child),
115 wxT("MDI child didn't remove itself using RemoveMDIChild()"));
116 }
117 [m_observer release];
118 }
119
120 void wxMDIParentFrame::AddMDIChild(wxMDIChildFrame *child)
121 {
122 m_mdiChildren.Append(child);
123 }
124
125 void wxMDIParentFrame::RemoveMDIChild(wxMDIChildFrame *child)
126 {
127 m_mdiChildren.DeleteObject(child);
128 if(child==m_currentChild)
129 SetActiveChild(NULL);
130 }
131
132 void wxMDIParentFrame::SetActiveChild(wxMDIChildFrame *child)
133 {
134 m_currentChild = child;
135 wxMenuBarManager::GetInstance()->UpdateMenuBar();
136 }
137
138 wxMenuBar *wxMDIParentFrame::GetAppMenuBar(wxCocoaNSWindow *win)
139 {
140 if(m_currentChild && (win==this))
141 return m_currentChild->GetAppMenuBar(win);
142 return wxFrame::GetAppMenuBar(win);
143 }
144
145 void wxMDIParentFrame::CocoaDelegate_windowDidBecomeKey(void)
146 {
147 wxLogTrace(wxTRACE_COCOA,wxT("wxMDIParentFrame=%p::CocoaDelegate_windowDidBecomeKey"),this);
148 if(sm_cocoaDeactivateWindow && sm_cocoaDeactivateWindow==m_currentChild)
149 {
150 sm_cocoaDeactivateWindow = NULL;
151 }
152 #if 0
153 else if(sm_cocoaDeactivateWindow == this)
154 {
155 sm_cocoaDeactivateWindow = NULL;
156 }
157 #endif
158 else
159 {
160 if(m_currentChild)
161 {
162 NSWindow *nswin = m_currentChild->GetNSWindow();
163 if(![nswin isMainWindow])
164 [nswin makeMainWindow];
165 }
166 wxFrame::CocoaDelegate_windowDidBecomeKey();
167 }
168 }
169
170 void wxMDIParentFrame::CocoaDelegate_windowDidResignKey(void)
171 {
172 wxLogTrace(wxTRACE_COCOA,wxT("wxMDIParentFrame=%p::CocoaDelegate_windowDidResignKey"),this);
173 if(m_closed)
174 wxFrame::CocoaDelegate_windowDidResignKey();
175 else
176 sm_cocoaDeactivateWindow = this;
177 }
178
179 // We should not become the main window as we aren't a document window
180 // MDI "Children" should be the main window
181 bool wxMDIParentFrame::Cocoa_canBecomeMainWindow(bool &canBecome)
182 {
183 canBecome = m_mdiChildren.IsEmpty(); return true;
184 }
185
186 void wxMDIParentFrame::WindowDidBecomeMain(NSNotification *notification)
187 {
188 // If we aren't the key window, we don't care
189 if(![m_cocoaNSWindow isKeyWindow])
190 return;
191 wxCocoaNSWindow *win = wxCocoaNSWindow::GetFromCocoa([notification object]);
192 // If we are key and becoming main, that's great
193 if(win==this)
194 return;
195 // If one of our children is becoming main, also great
196 for(wxCocoaMDIChildFrameList::compatibility_iterator node =
197 m_mdiChildren.GetFirst(); node; node = node->GetNext())
198 {
199 wxMDIChildFrame *child = node->GetData();
200 if(win==child)
201 return;
202 }
203 // Some other window is becoming main, but we are key
204 // Make the new main window the key window
205 [[notification object] makeKeyWindow];
206 if(!m_currentChild)
207 {
208 wxIntMDIChildFrameHashMap hashmap;
209 for(wxCocoaMDIChildFrameList::compatibility_iterator node =
210 m_mdiChildren.GetFirst(); node; node = node->GetNext())
211 {
212 wxMDIChildFrame *child = node->GetData();
213 hashmap.insert(wxIntMDIChildFrameHashMap::value_type([child->m_cocoaNSWindow windowNumber],child));
214 }
215 if(!hashmap.empty())
216 {
217 NSInteger windowCount = 0;
218 NSCountWindows(&windowCount);
219 wxASSERT(windowCount>0);
220 NSInteger *windowList = new NSInteger[windowCount];
221 NSWindowList(windowCount, windowList);
222 wxIntMDIChildFrameHashMap::iterator iter = hashmap.end();
223 for(int i=0; i<windowCount && iter == hashmap.end(); i++)
224 iter=hashmap.find(windowList[i]);
225 if(iter != hashmap.end())
226 m_currentChild = iter->second;
227 }
228 }
229 }
230
231 // ========================================================================
232 // wxMDIChildFrame
233 // ========================================================================
234 IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame,wxFrame)
235 BEGIN_EVENT_TABLE(wxMDIChildFrame,wxFrame)
236 END_EVENT_TABLE()
237
238 void wxMDIChildFrame::Init()
239 {
240 m_mdiParent = NULL;
241 }
242
243 bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
244 wxWindowID winid, const wxString& title,
245 const wxPoint& pos, const wxSize& size,
246 long style, const wxString& name)
247 {
248 bool success = wxFrame::Create(parent,winid,title,pos,size,style,name);
249 if(success)
250 {
251 m_mdiParent = parent;
252 parent->AddMDIChild(this);
253 }
254 return success;
255 }
256
257 wxMDIChildFrame::~wxMDIChildFrame()
258 {
259 // Just in case Destroy() wasn't called
260 m_mdiParent->RemoveMDIChild(this);
261 }
262
263 void wxMDIChildFrame::Activate()
264 {
265 }
266
267 void wxMDIChildFrame::CocoaDelegate_windowDidBecomeKey(void)
268 {
269 wxLogTrace(wxTRACE_COCOA,wxT("wxMDIChildFrame=%p::CocoaDelegate_windowDidBecomeKey"),this);
270 if(sm_cocoaDeactivateWindow && sm_cocoaDeactivateWindow==m_mdiParent)
271 {
272 sm_cocoaDeactivateWindow = NULL;
273 if(m_mdiParent->GetActiveChild() != this)
274 sm_cocoaDeactivateWindow = m_mdiParent->GetActiveChild();
275 }
276 m_mdiParent->SetActiveChild(this);
277 wxFrame::CocoaDelegate_windowDidBecomeKey();
278 }
279
280 void wxMDIChildFrame::CocoaDelegate_windowDidBecomeMain(void)
281 {
282 m_mdiParent->SetActiveChild(this);
283 wxFrame::CocoaDelegate_windowDidBecomeMain();
284 }
285
286 void wxMDIChildFrame::CocoaDelegate_windowDidResignKey(void)
287 {
288 wxLogTrace(wxTRACE_COCOA,wxT("wxMDIChildFrame=%p::CocoaDelegate_windowDidResignKey"),this);
289 sm_cocoaDeactivateWindow = this;
290 }
291
292 bool wxMDIChildFrame::Destroy()
293 {
294 // It's good to do this here before we are really closed
295 m_mdiParent->RemoveMDIChild(this);
296 return wxFrame::Destroy();
297 }
298
299 // ========================================================================
300 // wxMDIClientWindow
301 // ========================================================================
302 IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow,wxWindow)
303
304 bool wxMDIClientWindow::CreateClient(wxMDIParentFrame *parent, long style)
305 {
306 return Create(parent, wxID_ANY, wxPoint(0, 0), wxSize(0, 0), style);
307 }
308
309 #endif // wxUSE_MDI